三维四步编织复合材料单元胞体几何模型

陈作荣; 诸德超; 陆萌

三维四步编织复合材料单元胞体几何模型

北京航空航天大学飞行器设计与应用力学系

基金项目: 国家自然科学基金资助项目(19932030)

详细信息

作者简介:
陈作荣(1972-),男,四川资阳人,博士生,100083,北京.

中图分类号: TB 33; TS 101.2
计量
- 文章访问数: 3039
- HTML全文浏览量: 244
- PDF下载量: 897
- 被引次数: 0
出版历程
- 收稿日期: 1999-04-06
- 网络出版日期: 2000-05-31

Unit Cell Geometric Model of 4-Step 3-D Braided Composites

Beijing University of Aeronautics and Astronautics,Dept. of Flight Vehicle Design and Applied Mechanics

摘要

摘要: 概述了三维四步(1×1)编织复合材料几何模型的研究进展,分析了三维四步正规编织过程中纤维束的运动路径及交织方式,提出了一种三维实体单元胞体几何模型,研究了三维编织复合材料单元胞体的几何性,并讨论了纤维束的挤压条件.和传统的几何模型比较,该模型体现了纤维束的连续性,使得各单元胞体之间合理地组装,保证了复合材料整体结构的完整性.
- 复合材料 /
- 纺织 /
- 三维结构 /
- 纤维体积比 /
- 连续性
Abstract: After briefly reviewing the proceeding of geometric model of 4-step 3-D (1×1) rectangular braided composites, yarn path in 4-step rectangular braiding process is analyzed. On this basis, a 3-D solid unit cell geometric model is proposed, the characteristics of geometry of 3-D braided composites are studied and yarn-jamming condition is discussed. Compared with conventional geometric models, the identified geometric model reflects the continuity of yarn in 3-D braided composites, which makes each unit cell assembled reasonably, so the structural integrity of 3-D braided composites is assured. The 3-D solid geometric model makes it possible to correctly consider the interactions between yarn and matrix for analysis of effective mechanic behaviors of 3-D braided composites.
- composite materials /
- textile /
- three dimensional structure /
- fiber volume fraction /
- continuity

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参考文献(1)

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